


if (!document.createElement("canvas").getContext) {
    (function () {
        var m = Math;
        var mr = m.round;
        var ms = m.sin;
        var mc = m.cos;
        var abs = m.abs;
        var sqrt = m.sqrt;
        var Z = 10;
        var Z2 = Z / 2;
        function getContext() {
            return this.context_ || (this.context_ = new CanvasRenderingContext2D_(this));
        }
        var slice = Array.prototype.slice;
        function bind(f, obj, var_args) {
            var a = slice.call(arguments, 2);
            return function () {
                return f.apply(obj, a.concat(slice.call(arguments)));
            };
        }
        var G_vmlCanvasManager_ = {init:function (opt_doc) {
            if (/MSIE/.test(navigator.userAgent) && !window.opera) {
                var doc = opt_doc || document;
                doc.createElement("canvas");
                doc.attachEvent("onreadystatechange", bind(this.init_, this, doc));
            }
        }, init_:function (doc) {
            if (!doc.namespaces["g_vml_"]) {
                doc.namespaces.add("g_vml_", "urn:schemas-microsoft-com:vml", "#default#VML");
            }
            if (!doc.namespaces["g_o_"]) {
                doc.namespaces.add("g_o_", "urn:schemas-microsoft-com:office:office", "#default#VML");
            }
            if (!doc.styleSheets["ex_canvas_"]) {
                var ss = doc.createStyleSheet();
                ss.owningElement.id = "ex_canvas_";
                ss.cssText = "canvas{display:inline-block;overflow:hidden;" + "text-align:left;width:300px;height:150px}" + "g_vml_\\:*{behavior:url(#default#VML)}" + "g_o_\\:*{behavior:url(#default#VML)}";
            }
            var els = doc.getElementsByTagName("canvas");
            for (var i = 0; i < els.length; i++) {
                this.initElement(els[i]);
            }
        }, initElement:function (el) {
            if (!el.getContext) {
                el.getContext = getContext;
                el.innerHTML = "";
                el.attachEvent("onpropertychange", onPropertyChange);
                el.attachEvent("onresize", onResize);
                var attrs = el.attributes;
                if (attrs.width && attrs.width.specified) {
                    el.style.width = attrs.width.nodeValue + "px";
                } else {
                    el.width = el.clientWidth;
                }
                if (attrs.height && attrs.height.specified) {
                    el.style.height = attrs.height.nodeValue + "px";
                } else {
                    el.height = el.clientHeight;
                }
            }
            return el;
        }};
        function onPropertyChange(e) {
            var el = e.srcElement;
            switch (e.propertyName) {
              case "width":
                el.style.width = el.attributes.width.nodeValue + "px";
                el.getContext().clearRect();
                break;
              case "height":
                el.style.height = el.attributes.height.nodeValue + "px";
                el.getContext().clearRect();
                break;
            }
        }
        function onResize(e) {
            var el = e.srcElement;
            if (el.firstChild) {
                el.firstChild.style.width = el.clientWidth + "px";
                el.firstChild.style.height = el.clientHeight + "px";
            }
        }
        G_vmlCanvasManager_.init();
        var dec2hex = [];
        for (var i = 0; i < 16; i++) {
            for (var j = 0; j < 16; j++) {
                dec2hex[i * 16 + j] = i.toString(16) + j.toString(16);
            }
        }
        function createMatrixIdentity() {
            return [[1, 0, 0], [0, 1, 0], [0, 0, 1]];
        }
        function matrixMultiply(m1, m2) {
            var result = createMatrixIdentity();
            for (var x = 0; x < 3; x++) {
                for (var y = 0; y < 3; y++) {
                    var sum = 0;
                    for (var z = 0; z < 3; z++) {
                        sum += m1[x][z] * m2[z][y];
                    }
                    result[x][y] = sum;
                }
            }
            return result;
        }
        function copyState(o1, o2) {
            o2.fillStyle = o1.fillStyle;
            o2.lineCap = o1.lineCap;
            o2.lineJoin = o1.lineJoin;
            o2.lineWidth = o1.lineWidth;
            o2.miterLimit = o1.miterLimit;
            o2.shadowBlur = o1.shadowBlur;
            o2.shadowColor = o1.shadowColor;
            o2.shadowOffsetX = o1.shadowOffsetX;
            o2.shadowOffsetY = o1.shadowOffsetY;
            o2.strokeStyle = o1.strokeStyle;
            o2.globalAlpha = o1.globalAlpha;
            o2.arcScaleX_ = o1.arcScaleX_;
            o2.arcScaleY_ = o1.arcScaleY_;
            o2.lineScale_ = o1.lineScale_;
        }
        function processStyle(styleString) {
            var str, alpha = 1;
            styleString = String(styleString);
            if (styleString.substring(0, 3) == "rgb") {
                var start = styleString.indexOf("(", 3);
                var end = styleString.indexOf(")", start + 1);
                var guts = styleString.substring(start + 1, end).split(",");
                str = "#";
                for (var i = 0; i < 3; i++) {
                    str += dec2hex[Number(guts[i])];
                }
                if (guts.length == 4 && styleString.substr(3, 1) == "a") {
                    alpha = guts[3];
                }
            } else {
                str = styleString;
            }
            return {color:str, alpha:alpha};
        }
        function processLineCap(lineCap) {
            switch (lineCap) {
              case "butt":
                return "flat";
              case "round":
                return "round";
              case "square":
              default:
                return "square";
            }
        }
        function CanvasRenderingContext2D_(surfaceElement) {
            this.m_ = createMatrixIdentity();
            this.mStack_ = [];
            this.aStack_ = [];
            this.currentPath_ = [];
            this.strokeStyle = "#000";
            this.fillStyle = "#000";
            this.lineWidth = 1;
            this.lineJoin = "miter";
            this.lineCap = "butt";
            this.miterLimit = Z * 1;
            this.globalAlpha = 1;
            this.canvas = surfaceElement;
            var el = surfaceElement.ownerDocument.createElement("div");
            el.style.width = surfaceElement.clientWidth + "px";
            el.style.height = surfaceElement.clientHeight + "px";
            el.style.overflow = "hidden";
            el.style.position = "absolute";
            surfaceElement.appendChild(el);
            this.element_ = el;
            this.arcScaleX_ = 1;
            this.arcScaleY_ = 1;
            this.lineScale_ = 1;
        }
        var contextPrototype = CanvasRenderingContext2D_.prototype;
        contextPrototype.clearRect = function () {
            this.element_.innerHTML = "";
        };
        contextPrototype.beginPath = function () {
            this.currentPath_ = [];
        };
        contextPrototype.moveTo = function (aX, aY) {
            var p = this.getCoords_(aX, aY);
            this.currentPath_.push({type:"moveTo", x:p.x, y:p.y});
            this.currentX_ = p.x;
            this.currentY_ = p.y;
        };
        contextPrototype.lineTo = function (aX, aY) {
            var p = this.getCoords_(aX, aY);
            this.currentPath_.push({type:"lineTo", x:p.x, y:p.y});
            this.currentX_ = p.x;
            this.currentY_ = p.y;
        };
        contextPrototype.bezierCurveTo = function (aCP1x, aCP1y, aCP2x, aCP2y, aX, aY) {
            var p = this.getCoords_(aX, aY);
            var cp1 = this.getCoords_(aCP1x, aCP1y);
            var cp2 = this.getCoords_(aCP2x, aCP2y);
            bezierCurveTo(this, cp1, cp2, p);
        };
        function bezierCurveTo(self, cp1, cp2, p) {
            self.currentPath_.push({type:"bezierCurveTo", cp1x:cp1.x, cp1y:cp1.y, cp2x:cp2.x, cp2y:cp2.y, x:p.x, y:p.y});
            self.currentX_ = p.x;
            self.currentY_ = p.y;
        }
        contextPrototype.quadraticCurveTo = function (aCPx, aCPy, aX, aY) {
            var cp = this.getCoords_(aCPx, aCPy);
            var p = this.getCoords_(aX, aY);
            var cp1 = {x:this.currentX_ + 2 / 3 * (cp.x - this.currentX_), y:this.currentY_ + 2 / 3 * (cp.y - this.currentY_)};
            var cp2 = {x:cp1.x + (p.x - this.currentX_) / 3, y:cp1.y + (p.y - this.currentY_) / 3};
            bezierCurveTo(this, cp1, cp2, p);
        };
        contextPrototype.arc = function (aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise) {
            aRadius *= Z;
            var arcType = aClockwise ? "at" : "wa";
            var xStart = aX + mc(aStartAngle) * aRadius - Z2;
            var yStart = aY + ms(aStartAngle) * aRadius - Z2;
            var xEnd = aX + mc(aEndAngle) * aRadius - Z2;
            var yEnd = aY + ms(aEndAngle) * aRadius - Z2;
            if (xStart == xEnd && !aClockwise) {
                xStart += 0.125;
            }
            var p = this.getCoords_(aX, aY);
            var pStart = this.getCoords_(xStart, yStart);
            var pEnd = this.getCoords_(xEnd, yEnd);
            this.currentPath_.push({type:arcType, x:p.x, y:p.y, radius:aRadius, xStart:pStart.x, yStart:pStart.y, xEnd:pEnd.x, yEnd:pEnd.y});
        };
        contextPrototype.rect = function (aX, aY, aWidth, aHeight) {
            this.moveTo(aX, aY);
            this.lineTo(aX + aWidth, aY);
            this.lineTo(aX + aWidth, aY + aHeight);
            this.lineTo(aX, aY + aHeight);
            this.closePath();
        };
        contextPrototype.strokeRect = function (aX, aY, aWidth, aHeight) {
            var oldPath = this.currentPath_;
            this.beginPath();
            this.moveTo(aX, aY);
            this.lineTo(aX + aWidth, aY);
            this.lineTo(aX + aWidth, aY + aHeight);
            this.lineTo(aX, aY + aHeight);
            this.closePath();
            this.stroke();
            this.currentPath_ = oldPath;
        };
        contextPrototype.fillRect = function (aX, aY, aWidth, aHeight) {
            var oldPath = this.currentPath_;
            this.beginPath();
            this.moveTo(aX, aY);
            this.lineTo(aX + aWidth, aY);
            this.lineTo(aX + aWidth, aY + aHeight);
            this.lineTo(aX, aY + aHeight);
            this.closePath();
            this.fill();
            this.currentPath_ = oldPath;
        };
        contextPrototype.createLinearGradient = function (aX0, aY0, aX1, aY1) {
            var gradient = new CanvasGradient_("gradient");
            gradient.x0_ = aX0;
            gradient.y0_ = aY0;
            gradient.x1_ = aX1;
            gradient.y1_ = aY1;
            return gradient;
        };
        contextPrototype.createRadialGradient = function (aX0, aY0, aR0, aX1, aY1, aR1) {
            var gradient = new CanvasGradient_("gradientradial");
            gradient.x0_ = aX0;
            gradient.y0_ = aY0;
            gradient.r0_ = aR0;
            gradient.x1_ = aX1;
            gradient.y1_ = aY1;
            gradient.r1_ = aR1;
            return gradient;
        };
        contextPrototype.drawImage = function (image, var_args) {
            var dx, dy, dw, dh, sx, sy, sw, sh;
            var oldRuntimeWidth = image.runtimeStyle.width;
            var oldRuntimeHeight = image.runtimeStyle.height;
            image.runtimeStyle.width = "auto";
            image.runtimeStyle.height = "auto";
            var w = image.width;
            var h = image.height;
            image.runtimeStyle.width = oldRuntimeWidth;
            image.runtimeStyle.height = oldRuntimeHeight;
            if (arguments.length == 3) {
                dx = arguments[1];
                dy = arguments[2];
                sx = sy = 0;
                sw = dw = w;
                sh = dh = h;
            } else {
                if (arguments.length == 5) {
                    dx = arguments[1];
                    dy = arguments[2];
                    dw = arguments[3];
                    dh = arguments[4];
                    sx = sy = 0;
                    sw = w;
                    sh = h;
                } else {
                    if (arguments.length == 9) {
                        sx = arguments[1];
                        sy = arguments[2];
                        sw = arguments[3];
                        sh = arguments[4];
                        dx = arguments[5];
                        dy = arguments[6];
                        dw = arguments[7];
                        dh = arguments[8];
                    } else {
                        throw Error("Invalid number of arguments");
                    }
                }
            }
            var d = this.getCoords_(dx, dy);
            var w2 = sw / 2;
            var h2 = sh / 2;
            var vmlStr = [];
            var W = 10;
            var H = 10;
            vmlStr.push(" <g_vml_:group", " coordsize=\"", Z * W, ",", Z * H, "\"", " coordorigin=\"0,0\"", " style=\"width:", W, "px;height:", H, "px;position:absolute;");
            if (this.m_[0][0] != 1 || this.m_[0][1]) {
                var filter = [];
                filter.push("M11=", this.m_[0][0], ",", "M12=", this.m_[1][0], ",", "M21=", this.m_[0][1], ",", "M22=", this.m_[1][1], ",", "Dx=", mr(d.x / Z), ",", "Dy=", mr(d.y / Z), "");
                var max = d;
                var c2 = this.getCoords_(dx + dw, dy);
                var c3 = this.getCoords_(dx, dy + dh);
                var c4 = this.getCoords_(dx + dw, dy + dh);
                max.x = m.max(max.x, c2.x, c3.x, c4.x);
                max.y = m.max(max.y, c2.y, c3.y, c4.y);
                vmlStr.push("padding:0 ", mr(max.x / Z), "px ", mr(max.y / Z), "px 0;filter:progid:DXImageTransform.Microsoft.Matrix(", filter.join(""), ", sizingmethod='clip');");
            } else {
                vmlStr.push("top:", mr(d.y / Z), "px;left:", mr(d.x / Z), "px;");
            }
            vmlStr.push(" \">", "<g_vml_:image src=\"", image.src, "\"", " style=\"width:", Z * dw, "px;", " height:", Z * dh, "px;\"", " cropleft=\"", sx / w, "\"", " croptop=\"", sy / h, "\"", " cropright=\"", (w - sx - sw) / w, "\"", " cropbottom=\"", (h - sy - sh) / h, "\"", " />", "</g_vml_:group>");
            this.element_.insertAdjacentHTML("BeforeEnd", vmlStr.join(""));
        };
        contextPrototype.stroke = function (aFill) {
            var lineStr = [];
            var lineOpen = false;
            var a = processStyle(aFill ? this.fillStyle : this.strokeStyle);
            var color = a.color;
            var opacity = a.alpha * this.globalAlpha;
            var W = 10;
            var H = 10;
            lineStr.push("<g_vml_:shape", " filled=\"", !!aFill, "\"", " style=\"position:absolute;width:", W, "px;height:", H, "px;\"", " coordorigin=\"0 0\" coordsize=\"", Z * W, " ", Z * H, "\"", " stroked=\"", !aFill, "\"", " path=\"");
            var newSeq = false;
            var min = {x:null, y:null};
            var max = {x:null, y:null};
            for (var i = 0; i < this.currentPath_.length; i++) {
                var p = this.currentPath_[i];
                var c;
                switch (p.type) {
                  case "moveTo":
                    c = p;
                    lineStr.push(" m ", mr(p.x), ",", mr(p.y));
                    break;
                  case "lineTo":
                    lineStr.push(" l ", mr(p.x), ",", mr(p.y));
                    break;
                  case "close":
                    lineStr.push(" x ");
                    p = null;
                    break;
                  case "bezierCurveTo":
                    lineStr.push(" c ", mr(p.cp1x), ",", mr(p.cp1y), ",", mr(p.cp2x), ",", mr(p.cp2y), ",", mr(p.x), ",", mr(p.y));
                    break;
                  case "at":
                  case "wa":
                    lineStr.push(" ", p.type, " ", mr(p.x - this.arcScaleX_ * p.radius), ",", mr(p.y - this.arcScaleY_ * p.radius), " ", mr(p.x + this.arcScaleX_ * p.radius), ",", mr(p.y + this.arcScaleY_ * p.radius), " ", mr(p.xStart), ",", mr(p.yStart), " ", mr(p.xEnd), ",", mr(p.yEnd));
                    break;
                }
                if (p) {
                    if (min.x == null || p.x < min.x) {
                        min.x = p.x;
                    }
                    if (max.x == null || p.x > max.x) {
                        max.x = p.x;
                    }
                    if (min.y == null || p.y < min.y) {
                        min.y = p.y;
                    }
                    if (max.y == null || p.y > max.y) {
                        max.y = p.y;
                    }
                }
            }
            lineStr.push(" \">");
            if (!aFill) {
                var lineWidth = this.lineScale_ * this.lineWidth;
                if (lineWidth < 1) {
                    opacity *= lineWidth;
                }
                lineStr.push("<g_vml_:stroke", " opacity=\"", opacity, "\"", " joinstyle=\"", this.lineJoin, "\"", " miterlimit=\"", this.miterLimit, "\"", " endcap=\"", processLineCap(this.lineCap), "\"", " weight=\"", lineWidth, "px\"", " color=\"", color, "\" />");
            } else {
                if (typeof this.fillStyle == "object") {
                    var fillStyle = this.fillStyle;
                    var angle = 0;
                    var focus = {x:0, y:0};
                    var shift = 0;
                    var expansion = 1;
                    if (fillStyle.type_ == "gradient") {
                        var x0 = fillStyle.x0_ / this.arcScaleX_;
                        var y0 = fillStyle.y0_ / this.arcScaleY_;
                        var x1 = fillStyle.x1_ / this.arcScaleX_;
                        var y1 = fillStyle.y1_ / this.arcScaleY_;
                        var p0 = this.getCoords_(x0, y0);
                        var p1 = this.getCoords_(x1, y1);
                        var dx = p1.x - p0.x;
                        var dy = p1.y - p0.y;
                        angle = Math.atan2(dx, dy) * 180 / Math.PI;
                        if (angle < 0) {
                            angle += 360;
                        }
                        if (angle < 0.000001) {
                            angle = 0;
                        }
                    } else {
                        var p0 = this.getCoords_(fillStyle.x0_, fillStyle.y0_);
                        var width = max.x - min.x;
                        var height = max.y - min.y;
                        focus = {x:(p0.x - min.x) / width, y:(p0.y - min.y) / height};
                        width /= this.arcScaleX_ * Z;
                        height /= this.arcScaleY_ * Z;
                        var dimension = m.max(width, height);
                        shift = 2 * fillStyle.r0_ / dimension;
                        expansion = 2 * fillStyle.r1_ / dimension - shift;
                    }
                    var stops = fillStyle.colors_;
                    stops.sort(function (cs1, cs2) {
                        return cs1.offset - cs2.offset;
                    });
                    var length = stops.length;
                    var color1 = stops[0].color;
                    var color2 = stops[length - 1].color;
                    var opacity1 = stops[0].alpha * this.globalAlpha;
                    var opacity2 = stops[length - 1].alpha * this.globalAlpha;
                    var colors = [];
                    for (var i = 0; i < length; i++) {
                        var stop = stops[i];
                        colors.push(stop.offset * expansion + shift + " " + stop.color);
                    }
                    lineStr.push("<g_vml_:fill type=\"", fillStyle.type_, "\"", " method=\"none\" focus=\"100%\"", " color=\"", color1, "\"", " color2=\"", color2, "\"", " colors=\"", colors.join(","), "\"", " opacity=\"", opacity2, "\"", " g_o_:opacity2=\"", opacity1, "\"", " angle=\"", angle, "\"", " focusposition=\"", focus.x, ",", focus.y, "\" />");
                } else {
                    lineStr.push("<g_vml_:fill color=\"", color, "\" opacity=\"", opacity, "\" />");
                }
            }
            lineStr.push("</g_vml_:shape>");
            this.element_.insertAdjacentHTML("beforeEnd", lineStr.join(""));
        };
        contextPrototype.fill = function () {
            this.stroke(true);
        };
        contextPrototype.closePath = function () {
            this.currentPath_.push({type:"close"});
        };
        contextPrototype.getCoords_ = function (aX, aY) {
            var m = this.m_;
            return {x:Z * (aX * m[0][0] + aY * m[1][0] + m[2][0]) - Z2, y:Z * (aX * m[0][1] + aY * m[1][1] + m[2][1]) - Z2};
        };
        contextPrototype.save = function () {
            var o = {};
            copyState(this, o);
            this.aStack_.push(o);
            this.mStack_.push(this.m_);
            this.m_ = matrixMultiply(createMatrixIdentity(), this.m_);
        };
        contextPrototype.restore = function () {
            copyState(this.aStack_.pop(), this);
            this.m_ = this.mStack_.pop();
        };
        function matrixIsFinite(m) {
            for (var j = 0; j < 3; j++) {
                for (var k = 0; k < 2; k++) {
                    if (!isFinite(m[j][k]) || isNaN(m[j][k])) {
                        return false;
                    }
                }
            }
            return true;
        }
        function setM(ctx, m, updateLineScale) {
            if (!matrixIsFinite(m)) {
                return;
            }
            ctx.m_ = m;
            if (updateLineScale) {
                var det = m[0][0] * m[1][1] - m[0][1] * m[1][0];
                ctx.lineScale_ = sqrt(abs(det));
            }
        }
        contextPrototype.translate = function (aX, aY) {
            var m1 = [[1, 0, 0], [0, 1, 0], [aX, aY, 1]];
            setM(this, matrixMultiply(m1, this.m_), false);
        };
        contextPrototype.rotate = function (aRot) {
            var c = mc(aRot);
            var s = ms(aRot);
            var m1 = [[c, s, 0], [-s, c, 0], [0, 0, 1]];
            setM(this, matrixMultiply(m1, this.m_), false);
        };
        contextPrototype.scale = function (aX, aY) {
            this.arcScaleX_ *= aX;
            this.arcScaleY_ *= aY;
            var m1 = [[aX, 0, 0], [0, aY, 0], [0, 0, 1]];
            setM(this, matrixMultiply(m1, this.m_), true);
        };
        contextPrototype.transform = function (m11, m12, m21, m22, dx, dy) {
            var m1 = [[m11, m12, 0], [m21, m22, 0], [dx, dy, 1]];
            setM(this, matrixMultiply(m1, this.m_), true);
        };
        contextPrototype.setTransform = function (m11, m12, m21, m22, dx, dy) {
            var m = [[m11, m12, 0], [m21, m22, 0], [dx, dy, 1]];
            setM(this, m, true);
        };
        contextPrototype.clip = function () {
        };
        contextPrototype.arcTo = function () {
        };
        contextPrototype.createPattern = function () {
            return new CanvasPattern_;
        };
        function CanvasGradient_(aType) {
            this.type_ = aType;
            this.x0_ = 0;
            this.y0_ = 0;
            this.r0_ = 0;
            this.x1_ = 0;
            this.y1_ = 0;
            this.r1_ = 0;
            this.colors_ = [];
        }
        CanvasGradient_.prototype.addColorStop = function (aOffset, aColor) {
            aColor = processStyle(aColor);
            this.colors_.push({offset:aOffset, color:aColor.color, alpha:aColor.alpha});
        };
        function CanvasPattern_() {
        }
        G_vmlCanvasManager = G_vmlCanvasManager_;
        CanvasRenderingContext2D = CanvasRenderingContext2D_;
        CanvasGradient = CanvasGradient_;
        CanvasPattern = CanvasPattern_;
    })();
}

